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Association of Percent of Sleep Time Spent in Stage 1 and DVT Completion Time (Seconds).
Adjusted for age, race, clinic, body mass index, instrumental activities of daily living, comorbidities, antidepressant use, benzodiazepine use, Geriatric Depression Scale score, education, alcohol use, smoking, physical activity, and self-reported health status.
DVT=Digit Vigilance Test; CI=confidence interval.
